Fiat 128 License Plate Bulb Size

The Fiat 128 license plate light requires specific bulb sizes 67, 89, and 97 depending on the exact version of the vehicle. Available data covers the production range from 1971 through 1979 for the listed components.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1979	67
1974-1978	89
1973	97
1971-1972	89

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	97

Other Locations

Additional Notes

The bulb type 89 is the most frequently specified license plate bulb for the Fiat 128, covering model years 1971-1972 and 1974-1978.
The 89 bulb follows the ANSI standard recognized in the United States and Canada, operating at 12 volts and 13 watts with a single-filament design.
All three bulb types listed across these specifications share the BA15s bayonet base, a single-contact base style that uses a single pin offset to one side to ensure correct orientation during installation.
The 1979 Fiat 128 uses the type 67 bulb, which differs from the 89 used in most other model years despite sharing the same BA15s base and 12-volt operating voltage.
The type 67 runs at 8 watts, making it a lower-output bulb than the 89 and 97, both of which operate at 13 watts.
The 1973 Fiat 128 uses the type 97 bulb, which also operates at 12 volts and 13 watts with a BA15s base, and is described as a variant of the 1156 rather than a lower-wattage variant of it.
Although the 89 and 97 share the same voltage, wattage, and base type, they are distinct ANSI part numbers and are not listed interchangeably within these specifications.
The shared BA15s base across all three bulb types does not indicate interchangeability, as wattage differences between the 67 and the 89 or 97 may affect circuit compatibility.